Marine-engine governor.



No. 732,567. PATENTED JUNE 30, 1903.

' G. F. LASHER.

MARINE ENGINE GOVERNOR.

APPLIOATIONIILED JUNE 12, 1902.

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PATENTED JUNE 30, 1903.

G. F. LASHER. MARINE ENGINE GOVEIENOR.

APPLIOATION FILED JUNE 12, 1902.

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PATENT OEEIcE.

GEORGE FRANKLIN LASHER, OF PORTLAND, OREGON, ASSIGN OR OF HALF TO ISAAC B. HOLZMAN, OF PORTLAND, OREGON.

MARINE-ENGINE GOVERNOR.

. SPECIFICATION formingpart of Letters Patent No. 732,567, dated June 30, 1903.

Application filed June 12,1902. Serial No. 111,329- (No model.)

T0 at whom it may concern:

Be it known that I, GEORGE FRANKLIN LASHER, a citizen of the United States, and a resident of Portland, in the county of Multnomah and State of Oregon, have invented a new and Improved Marine-Engine Governor, of which the following is a full, clear,.and exact description.

This invention relates to a marine-engine governor of that class which seeks to throttle the engine as the stern of the vessel heaves, thus preventing the screw racing in the air.

The apparatus comprises a float which works in astand-pipe built in the hull of the vessel immediately contiguous to the stern. This float has connection with a cam which is actuated as the float falls in the stand-pipe, the cam throwing up a rack and causing it to mesh with a continuously-driven worm, whereby the rack is moved longitudinally, and through a connection between therack and the throttle the speed of the engine is decreased, according to the extent of the movement of the rack.

This specification is an exact description of oneexample of my invention, while the claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters, of reference indicate corresponding parts in all the views.

Figure 1 is a sectional View of the invention, showing the parts in normal position. Fig. 2 is a detail cross-section on the line 2 2 of Fig. 1, and Fig. 3 is a view showing the stern of the vessel raised out of the water and illustrating the action of the apparatus to throttle the engine.

0, indicates the engine, and b the propellershaft. In the hull of the vessel immediately contiguous to the stern is constructed a standpipe 0, the bottom of which is open, so as to communicate directly with the water, and the upper end ofwhich rises above the highest water-line of the vessel and is open, as shown. The stand-pipe 0 may, if desired, be

fitted with asea-cock c, to be used in the ordinary manner.

0 indicates the float, which is fitted with antifriction-rollers c guiding it in its vertithe long arms of elbow-cams d.

cal movement in the stand-pipe.v Connected with the float c is a chain c, which runs over guide-sheaves c and has connection witha link d, which is in turn connected to These cams d carry antifriction rollers d on their working surfaces,and such rollers are engaged with a rack e,which is held-to reciprocate longitudinally in bracket-like frames 01 such frames being thus to carry the cams d. The frames d also carry a rotary shaft f, on \vhich'is fastened aworm f, adapted to mesh with the rack c When said rack is raised, as shown in Fig. 3. When the parts are at rest, however, the elements e and f are disengaged, as shown in Fig. 1. The shaft f carries bandpulleys f and over these pulleys run belts b, passing down around band-pulleys b on shaft b.

g indicates a stationary guideway, and in this guideway is arranged a slide g, which is connected with the rack e by a chain e. The slide 9 carries a rod g to which is fixed a piston 9 working in an air-cylinder g and this air-cylinder is fitted with a valve-controlled device g As the rack e moves sternward it drives with it the slide g and piston g and by regulating the size of the vent g the resistance to the rearward movement of the piston 9 may be increased or diminished at will. By these means the apparatus may be adjusted to work as desired.

h indicates the throttle-valve of the engine, and h indicates a weighted arm attached thereto, holding it normally in the open position shown in Fig. 1. This valve is connected by a chain It with an arm 9 on the slide g.

In the ordinary operation of the apparatus the parts assume the position shown in Fig. 1--that is to say, the float c is elevated in the stand-pipe and the rack e is allowed to drop to its lower or inactive position; The weighted arm h holds the throttle-Valve open and the engine operates unrestrainedly, ex-

cept by such controlling means as are under the direct care of the engineer. Should the vessel raise her stern out of the water, exposing the propeller and endangering racing of the engine, the float 0 will drop in the stand-pipe in exact proportion to the height to which the vessels stern is raised. This will tighten the chain 0 and by the action of the cams d the rack Q will be raised into mesh with the continuously-turning wormf. This worm will draw the rack sternward and the slide g will be actuated, thus drawing on the chain h and closing or partly closing the throttle, according to the distance to which the float 0 falls. As soon as the vessel resu mes her normal position the chains 0 and 72, are slackened and the parts all return to the inactive position shown in Fig. 1.

Various changes in the form and details of my invention may be resorted to at will Without departing from the spirit of my invention. Hence I consider myself entitled to all forms of the invention as may lie within the intent of my claims.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A marine-engine governor, comprising a stand-pipe in the vessel, a float working in the stand-pipe, a driven gear, a gear nor mally disengaged from the first-named gear, and capable of meshing therewith, means for moving the second gear into mesh with the first-named gear and actuated from the said float, and a connection between the secondnamed gear and the engine.

2. A marine-engine governor, comprising a stand-pipe in the vessel, a float working in the stand-pipe, a driven member, a second member normally disengaged from the said driven member and movable into engagement therewith, cams actuated from the float for moving the second member into engagement with the driven member, and a connection between the second-named member and the engine.

3. In a marine-engine governor, the combination with the controlling means, of a continuously-driven gear, a gear normally disengaged from the first-named gear and capable of meshing therewith, means for moving the second gear into mesh with the firstnamed gear, said means being actuated by the said controlling means, and a connection between the second named gear and the engine.

4. In a marine-engine governor, the combination with the controlling means, of a con tinuously-driven gear, a gear normally disengaged from the first-named gear and capable of meshing therewith, means for moving the second gear into mesh with .the firstnamed gear, said means being actuated by the said controlling means, and a connection between the second named gear and the engine, said means for moving the secondnamed gear into mesh comprising a pivoted cam working against the second-named gear. 5. In a marine-engine governor, the combination with the controlling means, of a continuously-driven worm, a racl: movable laterally and longitudinally, said rack being normally disengaged from the worm, means connected with the controlling means for moving the rack laterally into mesh with the Worm, and a connection between the rack and the engine.

6. In a marine-engine governor, the combination with the controlling means, of a continuously-driven worm, a rack movable laterally and longitudinally, said rack being normally disengaged from the worm, means connected with the controlling means for moving the rack laterally into mesh with the worm, and a connection between the rack and the engine, said controlling means com prising a stand-pipe rising from the bottom of the vessel and a float Working in the stand-pipe.

7. In a marine-engine governor, the combination with the controlling means, of a continuously-driven worm operated from the propeller-shaft, a laterally and longitudinally driven rack, a cam in connection with the controlling means and actuated thereby, the said cam serving to move the rack sidewise to mesh it with the worm, and a connection between the rack and the engine. I l

8. In a marine-engine governor, the combination with the throttle of the engine, and means for normally holding the throttle open, of a controlling means, a driven member, a member normally disengaged from the driven member, a connection between the said nor mally disengaged member and the throttle, and means connected with the controlling means for moving the said member into engagement with the said driven member.

9. In a marine-engine governor, the combination with the throttle of the engine, of means for normally holding the throttle open, a controlling means, a rack, means for driving the same, means actuated by the controlling means for moving the rack into engagement with the driving means, and a conneetion between the rack and the throttle to move the latter, as set forth.

10. In a marine-engine governor, the combination with the controlling means, of a driven member, a member normally disengaged from the driven member and movable into engagement therewith by the movement of the controlling means, an air-cylinder having a vent, a piston working in the cylinder, a connection between the piston and the normally disengaged member, and a connection between the piston and the throttle of the engine.

11. A marine-engine governor, comprising a stand-pipe in the vessel, a float working in the stand-pipe, an air-cylinder having a vent, a piston Working in said cylinder, a connection between the piston and the engine, and a connection between the float and said piston.

12. In a marine-engine governor, the combination with the controlling means, of a shaft driven from the propeller-shaft, a gear on said shaft, a rack movable into mesh with said gear, means for moving the rack into mesh with the gear and actuated by the eoncams, a connection between the said link and trolling means, and a connection between the the float, and a connection between the said rack and the engine. rack and the throttle of the engine.

13. In a marine-engine governor, the com- In testimony whereof I have signed my 5 bination with a stand-pipe in-the vessel, of a name to this specification in the presence of r 5 1 float working in said stand-pipe, a driven two subscribing witnesses.

worm, a rack normally disengagedfrom the GEORGEFRANKLIN LASHER. worm and adapted to be moved into mesh Witnesses: therewith, cams for moving the said rack into I E. E. MERGES,

l0 mesh with the worm, a link connecting the I T. W. ENOS. 

